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The Shirley Fire has been largely contained, according to an update from the U.S. Forest Service.

In an update just before 10 a.m., the Forest Service reported, "Excellent progress made over the previous 24 hours on all areas of the fire perimeter has enabled firefighters to raise containment to 75%."

The Forest Service noted that crews were still worried about blowing embers causing spot fires outside the containment lines and that they were facing steep rocky terrain.

As the fire winds down, firefighters were set to start returning home Tuesday with more fires likely to come, particularly during California's prolonged drought and dry conditions, according to the Forest Service.

Fighting the fire cost $7.2 million thus far, according to the Forest Service. The cause remains under investigation.